Plus in a format like Commander where everything is Highlander, you should just randomly have a few Zombies or changelings to bring back in many Black decks that are commonly played, so you can add this to your removal section,and then if you happen to have something to bring back, you can do that instead
A similar card to this is Mirri's Guile, which also provides the same effect to rearrange your library but misses the card draw potential
This leaves room for abusing a card like Greed or Erebos, God of the Dead to gain untold card advantage
Maybe you didn't get the card you wanted or have too many repeat cards
However, it is this drive for perfection that truly sets the value apart
Note that some services double as platforms for selling your cards, streamlining the selling process